Metallic elastic tire for vehicles.



G. MAGALDI.

METALLIC ELASTIG TIRE FOR VBHIGLES.

APPLICATION FILED AUG. 16, 1906.

936,142. manned @0115,1909.

3 SHEETS-SHEET 1.

G. MAGALDI., METALLIC ELASTIC TIRE FOR VEHICLES.

ArPLIoATIoN FILED AUG. 1e, 190s.

936, 142. Patented Oct. 5, 1909. y A 3 SHEBTSSHEET 2.y

Z i ,5m/677752" G. MAGALDL MBTALLIG ELASTIG TIRE FOR VEHICLES.

APPLICATION FILED AUG 16,)906.

Patented Oct. 5, 1909.

3 SHEETS-SHEET 3.

GIULIO MAGALDI, or isUcoINo, NEAR SALERNO, ITALY.

METALLIC ELASTIC TIRE FOR VEHICLES.

Specication of Letters Patent.

Patented Oct. 5, 1909.

Application led August 16, 1906. Serial No. 330,837.

To all whom it may concern:

Be it known that I, Grumo MAGALDI, mechanist, a subject of the King ofItaly, residing at Buccino, near Salerno, in the Kingdom of Italy, haveinvented new and useful Improvements in Metallic Elastic Tires forVehicles, of which the following is a specification.

My invention relates to elastic tires for vehicles of all kinds andrefers especially to that class of tires in which metallic link chainslying in planes laid through the axis of the wheel transversely to thetire and fixed to the felly of the same are used.

According to this invention the link chains or groups of link chains(hereinafter referred to as elements) are arranged with.

spaces between them to provide a skeleton for attachment of the coveringmaterial thereto, and for this purpose the link chains are provided withmeans for fixing this material upon and between them. These means mayconsist of points or tongues projecting from the chain links whichpoints or tongues in the case where groups consisting of several chainsare used may be preferably arranged side by side on adjacent links sothat they may be bent over to different sides to secure the coveringmaterial. The elements may he spaced one from the other by means ofstay-bolts or washers attached to the chain links preferably by means ofsaid points or tongues. By these and other features, which will bedeveloped in the specification hereinafter, a simple and strong tire isprovided which is comparatively inexpensive to manufacture and of lightweight.

Having reference to the accompanying drawings, Figure l is a singleelement of the tire formed by a link chain in front elevation parts ofthe chain being covered by the filling material inserted between theelementsg'Fig. 2 is a part of a wheel tire constructed according to thepresent invention in section through the middle plane of the wheel, t-hetire being seen from the inside; Fig. 3 is a cross section through amodied form of the tire taken in a plane through the aXis of the wheelbetween two neighboring link chain elements and showing such an elementin front elevation; Fig. 4 is a side elevation of a part of the tireaccording to Fig. 3 with parts broken away and partially in section;Fig. 5 is a section through the middle plane of a wheel provided with apart of the tire skeleton composed of the link chain elements; Fig. 6 isa sectional view of the stay-bolt like connecting means of the chainelements; Fig. T is a single chain link in side elevation and top viewrespectively; Fig. 8 is a similar view of special form of chain links;Fig. 9 is a part of the tire as represented in Fig. 3 in longitudinalsection through a socket of this tire with parts omitted; Fig. lO is atop view of a socket of the tire according to Fig. 3; Fig. 1l is atransverse vertical section showing the complete outer cover appliedabout the chain shown in Fig. 1.

The link chains constituting the elements of the tire consist of links aas shown in Fig. 7 in detail. Each of these links o has a point ortongue c projecting outwardy from the tire when the chains are inposition. The single links a. of each chain are flexibly connected onewith the other by means of pins c. Preferably the neighboring links a ofthe chains are arranged side by side with their bores coaxial so thatboth links may be connected by one pin as well as one to the other as tothe corresponding links of the neighboring chains. The outmost links ofeach chain are provided with hooks 7a, as represented in Fig. S. Thesehooks 7c engage openings of the felly and thereby fix the link chains tothe wheel.

The link chains attached to the wheel felly form together the skeletonof a continuous hollow tire. In the interior of this skeleton may bearranged elastic rings p to stiften the entire tire. These rings areheld by means of hooks q which may be integral with some of the chainlinks a as shown in Fig. l. In the form of the tire represented in 2 and6 tubes f are slipped over the joint pins c. These tubes serve to holdthe nei ghboring link chains suitable distances one from the other. Forthe same purpose the links of neighboring chains may be connected bymeans of washers (Z with two openings which are shifted over the pointsc of the links to be connected.

A metallic ring m may be arranged within the hollow skeleton formed bythe link chain elements which surround the felly concentrically. Theside edges of this ring m are bent inwardly as may be seen in Fig. 3,and the ends of the ring are connected by means of a flat metallic piecer which is inserted into the space between these ends and which is heldby the bent edges of the ring m, as

shown in Fig. In the space formed by the underside and by the bent edgesof the ring m there are arranged the heads 0 of screw bolts a. Thesebolts are passed through openings of the felly j and are held by nutsscrewed upon their projecting ends. By tightening these nuts the ring mmay be pressed more strongly to the adjacent ends of the link chains tosecure the engagement of the hooks 7c of the latter with the openings Zof the felly more positively.

Between the link chain elements narrow strips g of flexible material, asleather or fabric are arranged which completely fill the spaces betweenthe elements and these strips g are shifted over the pins e and therebyheld in position and they may be covered with other strips g also offlexible material. These strips g are preferably arranged longitudinallyand are fixed to the tire by means of the points c which pass throughthe strips and are bent over the different sides.

As shown in Fig. 3 some of the points or tongues o may serve to holdsockets c' containing pieces 7L of metal, wood, leather or the like forthe purpose of protecting the tire against wear and increasing itsadhesion to the ground. The sockets z' are represented in detail inFigs. 9 and l0 in which however the pieces h are omitted. As may be seenfrom these figures the sockets c' are fixed to the tire also by means ofpoints c passed through slits of the bottom of said sockets and beingbent over to different sides.

The described construction with the elastic ring p arranged in theinterior may be used as an elastic tire itself or it may serve as coverfor a usual pneiunatic tube.

I claim as my invention 1. A wheel tire consisting of elements arrangedin planes transversely to the tire, said elements consisting of aplurality of linkchains attached to the wheel rim and being arrangedwith spaces between them, said elements being provided with means forattaching covering material upon and between them.

2. A wheel tire consisting of elements arranged in planes transverselyto the tire, said elements consisting of link-chains attached to thewheel rim and being arranged with spaces between them, the chain-linksbeing provided with radial points or tongues projecting outwardlytherefrom and adapted to serve as supports and fastening means for theouter covering.

3. A wheel tire consisting of elements arranged in planes transverselyto the tire, said elements consisting of link-chains attached to thewheel rim and being arranged with spaces between them, said chain linksbeing provided with radial points or tongues projecting outwardlytherefrom, said points or tongues being adapted to serve as supports andfastening means for the outer covering, two adjacent series of saidlinks near the center of said link-chains being provided with inwardlyprojecting hooks, and a strap consisting of elastic rings within saidhooks, said rings being adapted to press the link-chains outwardly.

l. A wheel tire consisting of elements arranged in planes transverselyto the tire, said elements consisting of link-chains attached to thewheel rim and being arranged with spaces between them, said chain-linksbeing provided with radial points or tongues projecting outwardlytherefrom, said points or tongues adapted to serve as supports andfastening means for the outer covering, and said elements being held aproper distance from each other by means of stay-bolts and washers, saidwashers comiecting two points or tongues of neighboring elements.

A wheel tire consisting of'elements arranged in planes transversely tothe tire, said elements consisting of link-chains attached to the wheelrim and being arranged with spaces between them, said chain-links beingprovided with radial points or tongues projecting outwardly therefrom,said points or tongues being adapted to serve as supports and fasteningmeans for the outer covering, and said elements being held a properdistance from each other by means of staybolts, strips of exiblematerial arranged between said elements and held in position by saidstay-bolts and suitable material covering said material and saidelements and being fastened by means of said points or tongues.

6. A wheel tire consisting of elements arranged in planes transverselyto the tire,

said elements consisting of link-chains attached to the wheel rim andbeing arranged with spaces between them, the chain-links being providedwith radial points or tongues projecting outwardly therefrom, theneighboring link-chains being connected one with the other by means oftheir joint pins, said pins being of such length as to pass through thebores of the chain links of neighboring elements, stay-bolt like tubesshifted over said joint pins and washers shifted over two points ortongues of such neighboring elements, which are not connected by meansof said joint pins.

7. A wheel tire consisting of elements arranged in planes transverselyto the tire, said elements comprising link chains attached to the wheelrim and arranged with spaces between them, said chain links beingprovided with radial points or tongues projecting outwardly therefrom,the neighboring link chains being connected one with the other by meansof joint pins and stay bolt like tubes shifted over said points forholding said elements a proper distance from each other.

8. A wheel tire consisting of elements arranged in planes transverselyto the tire, said elements comprising link chains attached to the Wheelriin and arranged with spaces between them, said chain links beingprovided Wit-h radial points or tongues projecting outwardly therefrom,said elements being held a proper distance from each other by means ofWashers Connecting two points or tongues of adjacelit elements one withthe other7 the spaces between the 1o single elements and between saidpoints and tongues being filled by suitable material such as leather.

Dated this 27th day of July, 1906.

GIULIO MAGALDI. Titnesses ROBERTO MELFASELLE, NICOLA TETI.

